高速列车齿轮偏心下的轮轨作用动态特性  

Dynamic Characteristics of Wheel Rail Action under Gear Eccentricity of High-speed Train

作　　者：宋德刚 李智国 王志伟 SONG Degang;LI Zhiguo;WANG Zhiwei(CRRC Qingdao Sifang Locomotive and Rolling Stock Co.,Ltd.,Qingdao 266111,China;School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]中车青岛四方机车车辆股份有限公司,山东青岛266111 [2]西南交通大学机械工程学院,成都610031

出　　处：《机械工程师》2022年第5期108-111,共4页Mechanical Engineer

摘　　要：为了研究齿轮偏心下的高速列车轮轨作用动态行为,建立了考虑齿轮传动系统的高速列车车辆空间动力学模型,详细考虑了齿轮时变啮合刚度、传递误差、齿侧间隙和摩擦等非线性因素。构建了齿轮传动偏心动力学模型并集成于整车动力学模型,实现传动系统与车辆系统动态耦合。基于建立的动力学模型,对比分析齿轮偏心与正常条件下的轮轨作用特性。而且,系统地分析了不同速度、不同转矩及不同偏心量下轮轨作用动态特性。结果表明,齿轮偏心对轮轨动态作用具有直接影响,特别是在列车高速运行时。因此,在评估高速列车轮轨动态特性时,需要考虑齿轮传动系统的影响。In order to study the dynamic behavior of high-speed train wheel-rail action under gear eccentricity, this paper establishes a high-speed train vehicle space dynamics model considering the gear transmission system. Non-linear factors such as gear time-varying meshing stiffness, transmission error, tooth backlash and friction are considered. The eccentric dynamic model of the gear transmission is constructed and integrated into the dynamic model of the whole vehicle to realize the dynamic coupling between the transmission system and the vehicle system. Based on the established dynamic model, the characteristics of wheel-rail interaction between gear eccentricity and normal conditions are compared and analyzed. The dynamic characteristics of wheel-rail action under different speeds, different torques and different eccentricities are systematically analyzed. The results show that the gear eccentricity has a direct effect on the wheel-rail dynamics, especially when the train is running at high speed. Therefore, when evaluating the wheel-rail dynamic characteristics of high-speed trains, the influence of the gear transmission system needs to be considered.

关 键 词：高速列车 齿轮传动 齿轮偏心 轮轨作用 动力学 

分 类 号：U211.5[交通运输工程—道路与铁道工程]